Capt Pit Bull
May I apologise on behalf of the numpty controller who was unaware of the STAR routings - It was probably a W or X Watch controller!!
I too have seen large differences on TC CAPITAL on the ground speed readouts when a/c 8 miles in trail are meant to be doing the same speed. Other pilots ( foreigners of course
) must occasionally fly faster than instructed though your wind explaination is useful.